摘要:
The present technology is directed to devices and methods for dyeing a fiber, including pretreatment of the fiber before contacting it with a dye. The present technology is also directed to methods of improving the dyeability of a fiber, as well as increasing the efficiency of the dyeing process and minimizing waste and loss of dye.
摘要:
A pad-dyed or foam-dyed, pigment-colored, cellulose-based fabric that does not discolor upon chlorine bleaching of the fabric is provided. The fabric is dyed by grinding pigment colorants of a desired color to an ultra fine size and blending the grinded pigment colorants with one or more binders and, optionally, one or more additives, to form a padding paste. The padding paste is then prepared for pad dyeing or foam dyeing, and the fabric is pad dyed or foam dyed using the prepared padding paste.
摘要:
According to the invention, a metal salt and an oxygen source are applied to penetrate or impregnate a suitable substrate sequentially in effective amounts so as to react in contact with the substrate and produce a mineral compound fixed within the surface of the substrate. The inventive combination of a mutually compatible metal salt, oxygen source, and substrate brings about an in situ reaction, and modifies the substrate to bring about a lasting desired effect. The mineral compound that is produced according to the invention is linked to the substrate, is stable and long-lasting or permanent, and is immobilized or insolubilized in the substrate. The mineral compound is bound or contained within and on the substrate of the substrate, so it may be said to be ingrained in the fibers or matrix of the substrate, or embedded within the substrate. The desired effect is preferably a color. A wide variety of metal salts may be used depending on the desired effect. The oxygen source is preferably a peroxide, and the substrate is preferably a cellulose product such as wood, cotton, or paper; leather; or masonry. The invention contemplates methods of treating substrates, treatment kits, and treated products. With wood products, the invention provides a water-based stain of low toxicity useful for soft woods.
摘要:
Garments are constructed from lyocell fabric which has been resignated using a textile resin having just two groups per molecule which can reactively cross-link with cellulose molecules of the lyocell fabric then causticised by application under tension of an aqueous solution of sodium hydroxide, and the constructed garments are dyed in a garment dyeing operation. Garments can be produced by this route which retain a smooth, evently-dyed appearance with unpuckered seams and minimal creasing and so present a desired formal look, as distinct from the casual look imparted by the effects of fibrillation normally produced when lyocell garments undergo garment dyeing.
摘要:
Disclosed is a method for coloring a cellulose fiber which is characterized by comprising (1) a step for introducing a carboxyl group or sulfonic acid group into a cellulose fiber, and (2) a step for treating the carboxyl group or sulfonic acid group-introduced cellulose fiber with an aromatic derivative having one or more hydroxyl group and a metal salt at a time or individually. Also disclosed is a colored cellulose fiber obtained by such a method.
摘要:
A dyed and finished lyocell fabric having a clean, soft-touch finish is produced by a process in which fibrillation is induced in a wet processing step prior to dyeing. This step is carried out under pressure at high temperature using an aqueous carboxylic acid solution and enables the io unwanted longer fibre ends produced by fibrillation to be removed. Acetic acid and formic acid are the preferred carboxylic acids. Processing may be carried out on a fabric rope using an air-jet dyeing machine both for the fibrillation and the dyeing steps.
摘要:
A method for producing a colored cellulose fiber, comprising:
a step (1) of introducing a carboxylic group or a sulfonic acid group into cellulose fiber, and a step (2) of treating the cellulose fiber having the carboxylic group or the sulfonic acid group introduced with an aromatic derivative having one or more hydroxyl groups and a metal salt simultaneously or separately, and a colored cellulose fiber produced by the same method.
摘要:
The present invention concerns an improved process for printing and dyeing cellulosic textiles, especially cotton, whereby a compounds prepared by first, reacting a dicarboxylic acid with 5 to 22 C-atoms with diethylene triamine in a molar ratio of 1:1 at temperatures of 160 to 220°C, whereby during the reaction the formed water is distilled of, to form a condensation product accordingly, secondly, react the product of step i) at temperatures between 20 and 40°C with epichlorhydrin in a molar ration of 1:1 to form a cationic quaternized product, finally, add sulfuric acid and water to the product of the second step, is used.